鄂尔多斯盆地延长组长73亚段泥页岩层系岩石类型特征及勘探意义

刘显阳,李士祥,郭芪恒,周新平,刘江艳

Characteristics of rock types and exploration significance of the shale strata in the Chang 73 sub-member of Yanchang Formation， Ordos Basin

Xianyang LIU,Shixiang LI,Qiheng GUO,Xinping ZHOU,Jiangyan LIU

图7 鄂尔多斯盆地长73亚段泥页岩层系不同类型岩石储集空间特征 （a）城96井，2 071.30 m，长73亚段，刚性颗粒支撑的残余粒间孔；（b）城页1井，2 027.56 m，长73亚段，粒间孔；（c）城页1井，2 050.71 m，长73亚段，长石溶孔；（d）城页1井，2 052.85 m，长73亚段，粒间溶孔；（e）城页1井，2 028.14 m，长73亚段，阴极发光，砂质岩中强烈的钙质胶结；（f）—（g）阳检1井，长73亚段，黏土矿物晶间孔；（h）阳检1井，长73亚段，粒间孔，晶间孔；（i）白522井,1 951.36 m，长73亚段，黄铁矿晶间孔

Fig.7 Characteristics of reservoir space of different types in the Chang 73 sub-member, Ordos Basin